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WO2002047861A1 - Procede pour relier plusieurs postes de soudage et poste de soudage correspondant - Google Patents

Procede pour relier plusieurs postes de soudage et poste de soudage correspondant Download PDF

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Publication number
WO2002047861A1
WO2002047861A1 PCT/AT2001/000385 AT0100385W WO0247861A1 WO 2002047861 A1 WO2002047861 A1 WO 2002047861A1 AT 0100385 W AT0100385 W AT 0100385W WO 0247861 A1 WO0247861 A1 WO 0247861A1
Authority
WO
WIPO (PCT)
Prior art keywords
welding
process control
devices
power
interface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/AT2001/000385
Other languages
German (de)
English (en)
Other versions
WO2002047861A8 (fr
Inventor
Friedrich Oberzaucher
Michael Brunner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fronius Schweissmaschinen Produktion GmbH and Co KG
Fronius International GmbH
Fronius Schweissmaschinen KG Austria
Original Assignee
Fronius Schweissmaschinen Produktion GmbH and Co KG
Fronius International GmbH
Fronius Schweissmaschinen KG Austria
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fronius Schweissmaschinen Produktion GmbH and Co KG, Fronius International GmbH, Fronius Schweissmaschinen KG Austria filed Critical Fronius Schweissmaschinen Produktion GmbH and Co KG
Priority to DE50112083T priority Critical patent/DE50112083D1/de
Priority to EP01270402A priority patent/EP1341636B1/fr
Priority to AT01270402T priority patent/ATE354449T1/de
Priority to US10/416,956 priority patent/US7041936B2/en
Priority to AU2002220340A priority patent/AU2002220340A1/en
Publication of WO2002047861A1 publication Critical patent/WO2002047861A1/fr
Publication of WO2002047861A8 publication Critical patent/WO2002047861A8/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/095—Monitoring or automatic control of welding parameters
    • B23K9/0953—Monitoring or automatic control of welding parameters using computing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
    • B23K9/1006—Power supply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
    • B23K9/1006—Power supply
    • B23K9/1043—Power supply characterised by the electric circuit
    • B23K9/1056—Power supply characterised by the electric circuit by using digital means
    • B23K9/1062—Power supply characterised by the electric circuit by using digital means with computing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
    • B23K9/1006—Power supply
    • B23K9/1075—Parallel power supply, i.e. multiple power supplies or multiple inverters supplying a single arc or welding current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/16—Arc welding or cutting making use of shielding gas
    • B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
    • B23K9/1735—Arc welding or cutting making use of shielding gas and of a consumable electrode making use of several electrodes

Definitions

  • the invention relates to a method for connecting a plurality of welding devices, in particular a plurality of welding current sources or plasma current sources, and a corresponding welding device, as specified in claims 1 and 12.
  • An electronic power control device in particular as a welding energy source, is known from DE 199 30 678 AI, in which a current source or a welding device is constructed from several modules.
  • a single welding device is constructed from at least two similar power parts and a process control and / or regulating device.
  • Each power unit has its own control circuit, in particular a U / I controller, and has a mains connection, a process output and at least one control input.
  • the power units are connected in parallel or in series on the process side and are connected on the control side to an upstream power unit or to a higher-level process control and / or regulating device.
  • the present invention has for its object to provide welding devices or power sources, in particular welding power sources or plasma power sources, which can be operated as a functional unit, or to develop a method with which several independent welding devices or power sources in combination as a single one Unit can be addressed or controlled.
  • control or monitoring of the power units or the current sources is advantageously accomplished by only a single process control and / or regulating device, no illegal or undefined states can occur, as is the case in particular when several process control and / or Devices of several welding devices can occur, provided that no complex validation mechanisms have been implemented.
  • Another advantage is that of the controlling or regulating components
  • Welding machines only one welding machine is in operation, thereby achieving high stability and functional reliability of the entire unit.
  • the control and process regulating device is able to control or regulate several power units, so that the performance potential of the large number of power units is nevertheless used.
  • the welding process can be controlled centrally and interventions in the welding process are only required on one welding machine after the remaining welding machines or current sources automatically change or adapt to the new setpoints.
  • the additional process control and / or regulating devices of the further welding devices are preferably forced or automatically deactivated or inactivated so that carelessness of the user cannot lead to consequential damage or have no adverse effects.
  • the process control and / or regulating device is coupled, inter alia, to the input and / or output device of the welding device and controls or controls the other components of the welding device in accordance with the set values that can be set by the user, only the operating elements or the on are - And / or output elements of a single power source active, so that different settings on the individual welding devices can be excluded from the outset.
  • the measures according to claim 2 are also advantageous, since this enables a coordinated or synchronized process control of the individual welding devices to be carried out and thus different types of welding devices to be coupled with one another.
  • the measures according to claim 3 advantageously achieve that the target values or the regulating and / or control signals can be matched to the achievable energy, as a result of which simple power control of the individual welding devices can be carried out.
  • the measures according to claim 4 are also advantageous, since this enables a targeted network load.
  • a method according to claim 5 is also advantageous, since all the power units are supplied with the same electrical control signal or the respective setpoint and, at the same time, devices that are upstream in terms of circuitry can be at least effectively decoupled from the power units.
  • a procedure according to claim 6 is also advantageous, since the performance data can thus be adapted to individual needs or the overall performance can be increased by interconnecting a plurality of current sources or power parts.
  • the measures according to claim 7 advantageously achieve that, in the case of differently dimensioned current sources or power parts, a load distribution can be carried out taking into account the power limits of the corresponding power parts.
  • a procedure according to claim 8 is also advantageous, since this results in the greatest possible degree of
  • the measures according to claim 9 are also advantageous, since the services, in particular the computer services and the functions of the further welding devices can thereby be fully used.
  • An embodiment according to spoke 10 and 11 is also advantageous, since at least the process control and / or regulating devices of these further current sources are deactivated via the additional connection interface or via a standardized interface of the welding device or the current source to further welding devices or current sources can and the control of the unit is only taken over by a single process control and / or regulating device of the independently fully functional welding devices or current sources, so that inconsistent process controls or instabilities, as can occur in a process control with several active controllers, can be excluded.
  • the advantage is that at least devices upstream of the process control device, such as the process control and / or regulating device or the input and / or output device or the operating elements, can be at least effectively decoupled from the power section, so that device-related devices in connected welding machines can not influence.
  • An embodiment according to claims 13 and 14 is also advantageous, since in this way no electrical switching operations have to be carried out in order to be able to at least temporarily deactivate the effect of components or devices that are not required.
  • An embodiment according to claim 15 is also advantageous, since a physical welding device with higher output can be created from several welding devices.
  • the respectively valid setpoints or control or regulating signals of the active process control and / or regulating device can be fed directly to the process regulating devices or the power units of the connected welding devices, so that these independently correspond to the respective setpoints Process control can make.
  • an embodiment according to claims 17 and 18 is also advantageous, since when changes occur at the interface or the connection interface by connecting a plurality of welding devices, a connection or interconnection process is recognized by the individual welding devices via this interface or connection interfaces can, whereupon appropriate measures for proper operation of the entire unit can be automatically initiated or carried out by the individual welding devices. Interfaces at the interface or the connection interface of the individual welding devices can thus be interpreted as signs of an intentional interconnection of several welding devices, so that additional manual adjustment or. Changeover activities for a user can be dispensed with.
  • FIG. 1 shows a structure of a welding device comprising the power source according to the invention in a simplified, schematic representation
  • FIG. 2 shows several welding devices which are coupled via a standardized interface and whose outputs are connected in parallel;
  • Fig. 3 several welding devices, which are coupled via corresponding connection interfaces and the outputs are connected in series.
  • Fig. 1 is a welding system or a welding device 1 for various welding processes such as MIG / M AG welding or TIG or TIG welding or electrode welding processes shown.
  • the solution according to the invention can, however, be used not only for use in welding current sources but also in current sources for charging devices, in particular for battery chargers and for current sources in plasma cutting and / or plasma welding technology.
  • the welding device 1 comprises a power source 2 with a power unit 3, a process control and / or regulating device 4 and a changeover element 5 assigned to the power unit 3 or the process control and / or regulating device 4.
  • the changeover element 5 or the process control - And / or control device 4 is connected to a control valve 6, which in a
  • a protective gas such as CO 2, helium or argon and the like
  • a wire feeder 11 which is common for MIG / MAG welding, can be controlled via the process control and / or regulating device 4, with a welding wire 13 from a supply drum 14 in the area of the welding torch via a supply line 12 10 is supplied.
  • the wire feed device 11 as is known from the prior art, to be integrated in the welding device 1, in particular in the grand housing, and not as an additional device, as shown in FIG. 1.
  • the current for establishing an arc 15 between the welding wire 13 and a workpiece 16 is fed via a welding line 17 from the power section 3 of the power source 2 to the welding torch 10 or the welding wire 13, the workpiece 16 to be welded also being connected to the welding machine via a further welding line 18
  • Welding machine 1, in particular with the power source 2 is connected and thus a circuit can be set up via the arc 15.
  • the welding torch 10 can be connected to a water tank 21 via a cooling circuit 19 with the interposition of a flow monitor 20, which means that the cooling circuit when the welding torch 10 is started up
  • the welding device 1 also has an input and / or output device 22 by means of which the most varied welding parameters or operating modes of the welding device 1 can be set.
  • the welding parameters set via the input and / or output device 22 are forwarded to the process control and / or regulating device 4, and the individual components of the welding system or of the welding device 1 are then controlled accordingly.
  • the welding torch 10 is connected to the welding device 1 or the welding system via a hose package 23.
  • the individual lines from the welding device 1 to the welding torch 10 are arranged in the hose package 23.
  • the hose package 23 is connected to the welding torch 10 via a connecting device 24 which is part of the prior art, whereas the individual lines in the hose package 23 are connected to the individual contacts of the welding device 1 via connection sockets or plug connections.
  • the hose package 23 is provided with a housing 26, in particular with the base housing, of the welding device via a strain relief device 25
  • FIG. 2 and 3 show a block diagram representation of a plurality of independent welding devices 1, 27, 28, with the illustration of all required assemblies or components for the construction of a welding device 1, 27, 28 being dispensed with.
  • the Welding devices 1, 27, 28 can be constructed, for example, as described in FIG. 1.
  • the welding devices 1, 27, 28 were represented by a greatly simplified block diagram in which only the individual essential components for creating the solution according to the invention are entered.
  • the welding devices 1, 27, 28 are composed of a power section 3, 29, 30, in which a digital U / I controller is integrated, a process control and / or regulating device 4, 31, 32, in particular a microprocessor control, for control and / or control of a process, in particular a welding process, and an interface 33, 34, 35 for communication with the internal and / or external assemblies or components.
  • a power section 3 29, 30, in which a digital U / I controller is integrated
  • a process control and / or regulating device 4 31, 32 in particular a microprocessor control, for control and / or control of a process, in particular a welding process
  • an interface 33, 34, 35 for communication with the internal and / or external assemblies or components.
  • the individual assemblies or components can also communicate directly with one another.
  • the further internal and / or external assemblies are connected to the individual components of the welding device 1, 27, 28 shown.
  • An input and / or output device 22, 36, 37 for setting and displaying the welding parameters is connected to the process control and / or regulating device 4, 31, 32, for example.
  • output sockets 38 to 43 for the positive and the negative potential are connected on the secondary side, so that by connecting a welding torch 10. 1 - a correspondingly set process, in particular welding process, can be carried out via the supply lines 17, 18.
  • an external unit or system such as a robot controller, a PLC controller, a PC or laptop, etc.
  • a standardized digital interface 44, 45, 46 connected.
  • a user can set a corresponding welding process or individual welding parameters or operating parameters via the input and / or output devices 22, 36, 37, so that subsequently The welding processes can be calculated by the process control and / or regulating devices 4, 31, 32, whereupon the process control and / or regulating devices 4, 31, 32 one or more control and / or Forward control signal (s) to the other components of welding machine 1, 27, 28.
  • the process control for a welding process is carried out only by the component of the power section 3, 29, 30, that is to say, for example, that the actual values determined for the welding process are fed back directly to the power section 3, 29, 30, the process control and / or - Control device 4, 31, 32 only performs control, monitoring and monitoring functions. It is thereby achieved that the process control for the technical process to be carried out, in particular the welding process, takes place independently of the individual process control and / or regulating devices 4, 31, 32.
  • the detection of the individual actual values can be formed by systems known from the prior art, such as a current measuring resistor or shunt (not shown) for the current value detection. It is of course possible that the regulation and control can be carried out by the process control and / or regulating device 4, 31, 32 for the further assemblies or components.
  • a plurality of welding devices 1, 27, 28 of the same and / or different power or the same and / or different output parameters, in particular machine characteristics, on the secondary side via the output sockets 38 to 43 to form a physically more powerful welding device 1 or 27 or 28 with one another can be interconnected, wherein for the control or regulation of the interconnected welding devices 1, 27, 28 these are connected digitally via a digital interface 44 known per se, 45, 46 and / or via a special, digital connection interface 47, 48, 49, as shown in FIG.
  • the welding devices 27, 28 with the deactivated process control and / or regulating devices 31, 32 receive the desired values via the interface 44, 45, 46 and / or via the connection interface 47, 48, 49 from the process-controlling welding device 1.
  • the welding devices 1, 27, 28, according to FIG. 1 are controlled on the control side via the digital
  • Interface 44, 45, 49 connected to one another via at least one interface cable 50. It is possible that the interface 44, 45, 46 is assigned a detection device - not shown. This detection device can be formed, for example, by a switching device, a transponder device, etc., or by software, the detection device being implemented in software in the exemplary embodiment shown. This has the task that when contacting or when the interface cable 50 is connected to the interface 44, 45, 46 it can recognize which type of data transmission is to be carried out, ie that the recognition device recognizes whether a data exchange with another welding device 1, 27, 28 or with another system, such as a robot controller.
  • the detection device is directly connected to the process control and / or regulating device 4, 31, 32 and the interface 33, 34, 35 or integrated in the process control and / or regulating device 4, 31, 32 in the case of software implementation. so that when activating or after connecting one or more welding devices 1, 27, 28 via the interface cable 50 to the interface 44, 45, 46 a representative signal to the process control and / or regulating device 4, 31, 32 is provided.
  • the switching of the welding devices 1, 27, 28 into a “multi-operation mode” can thus take place fully automatically, if necessary, via this detection device.
  • connection interface 47, 48, 49 it is of course also possible to use a special connection interface 47, 48, 49, as mentioned above, for wired or wireless coupling with an equivalent welding device 1, 27, 28 and over this connection interface 47, 48, 49, which is shown in FIG. 3, to achieve further performance features and advantages.
  • an interruption element 51, 52, 53 is arranged, as was shown schematically with a switching element.
  • the interruption element 51, 52, 53 has the task of separating the process control and / or regulating device 4, 31, 32 from the process control, in particular from the components of the power section 3, 29, 30, either effectively or galvanically, ie through the interruption element 51, 52, 53 when the interface 44, 45, 46 is activated, the data communication between the process control and / or regulating device 4, 31, 32 and the interface 33, 34, 35 and / or the power unit 3, 29, 30 is deactivated.
  • the schematic representation of the interruption elements 51, 52, 53 was made in the form of a hardware switching element.
  • the interruption element 51, 52, 53 is preferably implemented by a software solution and optionally effects a functional or functional decoupling or coupling between the process control and / or regulating device 4, 31, 32 and the associated interface 33, 34, 35 or Power section 3, 29, 30.
  • the interruption element 51, 52, 53 when the interfaces 44, 45, 46 activate the data communication between the process control and / or regulating device 4, 31, 32 and the interface 33, 34, 35 or the power section 3, 29, 30 deactivated.
  • the process control and / or regulating devices 4, 31, 32 By interconnecting the welding devices 1, 27, 28 via the interface cable 50, the process control and / or regulating devices 4, 31, 32 first determine which type of data transmission is to be carried out, ie that the interconnection is first recognized Welding devices 1, 27, 28 is carried out, whereupon the further functional sequences are dealt with. Furthermore, during this data exchange, the process control and / or regulating devices 4, 31, 32 independently determine which welding machine 1, 27, 28 takes over the control or regulating function, that is to say that the data exchange means, for example, the welding machine 1 as the main welding machine, is selected in particular as a master welding device 1, the further welding devices 27, 28 functioning as secondary welding devices, in particular slave welding devices.
  • the interruption elements 51, 52, 53 are now actuated by the respective process control and / or regulating devices 4, 31, 32, ie the connection between the process control and / or control devices 4, 31, 32 for in- interface 33, 34, 35 or to the power section 3, 29, 30 is interrupted. This was shown in such a way that at least one switching element or interruption element 51, 52, 53 is switched in such a way that it now creates an action-coupled or galvanic connection between the power section 3, 29, 30 and the interface 33, 34, 35.
  • the switching element or the interruption element 51 is connected between the power unit 3 and the process control and / or regulating device 4.
  • a process control and / or regulating device 4 is now responsible for a plurality of power units 3, 29, 30 and thus physically, a welding device 1 or 27 or 28 with a plurality of power units 3 and 29 and 30 is formed.
  • the process control or the process control for the other connected welding devices 1, 27, 28 is now carried out by the master welding device 1, that is to say by the process control and / or regulating device 4, with the data transfer between the individual welding devices 1, 27 , 28 via the interface 33, 34, 35 and the standardized interface 44, 45, 46.
  • the further process control and / or regulating devices 31, 32 of the auxiliary welding devices 27, 28 to support the process control and / or regulating device 4 of the master welding device 1 for the calculation and evaluation of various welding parameters, ie that the processing power is divided between the individual available process control and / or regulating devices 4, 31, 32, but only the process control and / or regulating device 4 of the master welding device 1 receives a control and / or regulating signal or corresponding setpoint values to the power units 3, 29, 30.
  • the setpoints or control and / or regulating signals are transmitted via the interface 44, so that the further components of the further welding devices 27, 28, in particular the further power units 29, 30, have them available for process control.
  • Welding devices 1, 27, 28 can be used, which are smaller compared to the required power. By connecting several smaller devices in parallel, the required power, in particular a correspondingly higher welding current, than each welding device 1, 27, 28 could perform for itself can then be achieved. This therefore makes it possible for less expensive welding devices 1, 27, 28 to also be used for welding processes with higher output, in particular with higher power requirements. This can be used, for example, in small businesses in which welding processes with high output, in particular with a high power requirement, are relatively seldom required, since these can now be carried out with a plurality of welding devices 1, 27, 28 with smaller dimensions. Depending on the performance that can be achieved by the interconnection, it may then still be necessary to mount a welding torch 10 - FIG.
  • hose packs 23 or welding torches 10 - in FIG. 1 - are provided for a multiple connection to individual power units 3, 29, 30.
  • the respective conversion work can be carried out particularly quickly and, depending on the design of the hose packs 23, a large number of welding devices 1, 27, 28 can be interconnected.
  • a digital connection is established with a high data transmission rate via the interfaces 44, 45, 46, the individual welding parameters, for example the current setpoint, only being provided by a process control and / or regulating device 4, 31 , 32 is determined or only has to be set on a process control and / or regulating device 4, 31, 32, in particular with an input and / or output device 22, 36, 37.
  • the individual welding parameters for example the current setpoint, only being provided by a process control and / or regulating device 4, 31 , 32 is determined or only has to be set on a process control and / or regulating device 4, 31, 32, in particular with an input and / or output device 22, 36, 37.
  • each welding device 1, 27, 28 used has the further components or assemblies required for process control or process execution or the monitoring functions, such as, for example, actual value determination, temperature monitoring, etc.
  • the process control in particular the welding process control, is carried out directly by them Components in the individual welding devices 1, 27, 28, that is to say independently of one another.
  • Welding device 1, 27, 28 thus independently controls or regulates the power required at the output sockets 38 to 43, as a result of which a very fast control process for the consumer or welding torch 10 - FIG. 1 - is achieved and at the same time the data exchange with one another is reduced can be. This also ensures that no additional wiring and conversions of the individual welding devices 1, 27, 28 have to be carried out for the interconnection, as is known from the prior art.
  • the safety functions such as overtemperature, input voltage, overcurrent, short circuit detection, etc., are also monitored or fulfilled in each individual welding device 1, 27, 28. However, if a corresponding error occurs in one of the welding devices 1, 27, 28, a corresponding signal is sent out via the interface 44, 45, 46 so that the master welding device 1 can recognize that a malfunction in one of the further welding devices 27 , 28 is present. This makes it possible that the master welding device 1 now interrupts the welding process and a corresponding optical and / or acoustic Interference signal or warning signal sends out to draw the user's attention.
  • the master welding device 1 can determine which power units 3, 29, 30 in by exchanging data with the other welding devices 1, 27, 28 the other welding devices 1, 27, 28 are arranged so that a corresponding distribution of the required power to the individual power units 3, 29, 30 can be effected, ie that the active process control and / or regulating device 4 the performance parameters of the Interface 44, 45, 46 or power parts 3, 29, 30 connected via the connection interface 47, 48, 49 can be recognized and thus a load distribution or power distribution is carried out for the process control.
  • the active process control and / or regulating device 4 not the number of interconnected welding devices 1, 27, 28 or power units 3, 29, 30, but the sum of the achievable energy, in particular the output voltage and / or of the output current, recognizes whereupon a corresponding output signal or a corresponding one from the master welding device 1
  • An advantage of the possibility of coupling a plurality of welding devices 1, 27, 28 at least on the control side, i.e. without interconnecting the power units 3, 29, 30, is that the setting of the welding parameters, e.g. the amount of the welding current, the feed speed of the welding wire and the like., must be carried out by only one user on one of the input and / or output devices 22, 36, 37 on any welding device 1, 27, 28 and all the welding devices due to the control-side coupling 1, 27, 28 can work according to the new setpoints.
  • This possibility for the control side coupling of several welding devices 1, 27, 28 is for example for training or
  • the coupling of the welding devices 1, 27, 28 according to the invention can also be used for so-called multi-wire welding systems.
  • At least two basically independent welding devices 1, 27, 28 are coupled on the control side via the interface 44, 45, 46 and the welding wires 13 of each welding device 1, 27, 28 are fed to a common welding torch 10 - FIG. 1.
  • Each of the wire electrodes supplied to the common welding torch 10 is supplied with the required electrical energy by the respective power section 3, 29, 30.
  • the only active process control and / or regulating device 4 controls the functionally coupled power parts 3, 29, 30 or their wire feed devices in such a way that the individual welding wires 13 are burned down simultaneously or in succession, the process control of the power parts 3, 29 , 30, however, takes place independently of one another.
  • the exemplary embodiment according to FIG. 3 now shows a series connection of a plurality of power units 3, 29, 30, which are now connected to one another via the special connection interface 47, 48, 49.
  • connection interfaces 47, 48, 49 Form electrically connected to each other, i.e. the additional connection interfaces 47, 48, 49 have been connected to one another. Since these connection interfaces 47, 48, 49 are preferably designed as interfaces for bit-parallel data transmission, a very rapid bidirectional data exchange can be carried out. Instead of providing electrical connection interfaces 47, 48, 49, it is of course also possible to use the connection interfaces 47, 48, 49 or the interfaces 44, 45, 46 - according to FIG. 2 - for inductive coupling via alternating electromagnetic fields and / or for optical coupling via appropriate light signals or via radio, that is to say to carry out a coupling electromagnetically and / or electrically and / or optically and / or inductively.
  • the power section 3 of the master welding device in particular its output socket 39 for the negative potential, is connected to the output socket 40 of the welding device 27 for the positive potential via the line 54 connected.
  • the output socket 41 for the negative potential of the welding device 27 is connected via line 55 to the output socket 42 for the positive pole. tential of the welding device 28 connected.
  • the consumer, in particular the welding torch 10 is now not only connected to a power unit 3, 29, 30 via the supply lines 17, 18, but rather is connected via the welding lines 17, 18 to the output socket 38 for the positive potential of the power unit 3 and the output socket 43 connected for the negative potential of the power unit 30.
  • the process control is again carried out independently by the individual welding devices 1, 27, 28, again only one process control and / or regulating device 4 remaining activated and the others being deactivated.
  • the individual power units 3, 29, 30 are synchronized with one another at the same clock frequency via the interface 44, 45, 46 and / or via the connection interface 47, 48, 49, the individual power units 3, 29, 30 can be controlled with a corresponding phase shift. It is possible that any welding device 1, 27, 28 takes over the synchronization, i.e. that the synchronization signals or clock signals formed are not from the master welding device 1, but from one
  • Secondary welding device 27, 28 are generated and transmitted. This relieves the computer of the master welding machine 1.
  • each welding device 1, 27, 28 is preferably designed as a single-phase AC voltage device.
  • a welding machine 1, 27, 28 can thus be connected to each phase of a multi-phase AC voltage network.
  • a major advantage of such a system for interconnecting a plurality of welding devices 1, 27, 28 is given by the fact that the user now automatically or selectively specifies a master welding device 1 which generates the individual control and / or regulating signals, but the process control in the individual welding devices 1, 27, 28 can be carried out and carried out independently and at the same time independently of one another. It is also possible that the master welding machine 1 is now connected to an external component, such as a PLC control or a robot control, via a further serial interface 44, 45, 46 already known from the prior art is, so that a bidirectional data exchange between external components and the interconnected welding devices 1, 27, 28 is carried out. Another significant advantage is that the computer performance in complex process controls can be divided between several process control and / or regulating devices 4, 31, 32, so that the computing process is accelerated.
  • connection interfaces 47, 48, 49 or the interfaces 44, 45, 46 simply by simply stringing them together or positively fitting them.
  • electromechanical plug-in couplings are provided, which automatically set up the desired electrical connections between the power units 3, 29, 30 by appropriately lining up the welding devices 1, 27, 28.
  • contact slides on the power parts 3, 29, 30, which in the extended state have the connection interface 47, 48, 49 of an adjacent power supply some 3, 29, 30 can contact.
  • FIGS. 1; 2, 3 shown form the subject of independent solutions according to the invention.
  • the tasks and solutions according to the invention in this regard can be found in the detailed descriptions of these figures.
  • Output socket power source 42 Output socket power section 43 Output socket process control and / or regulating device 44 Interface changeover element 45 Interface control valve 46 Interface supply line 47 Connection interface gas 48 Connection interface gas storage 49 Connection interface welding torch 50 Interface cable wire feed unit 51 Interruption element supply line 52 Interruption element welding wire 53 Interruption element supply drum 54 Cable arc 55 Line workpiece welding line welding line cooling circuit flow switch water container input and / or output device hose package connection device strain relief device housing welding machine welding device power section power section process control and / or regulation device process control and / or regulation device interface interface interface input and / or output device input and / or output device output jack Output socket Output socket

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Arc Welding Control (AREA)
  • Hydraulic Turbines (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Resistance Welding (AREA)

Abstract

L'invention concerne un procédé permettant de relier plusieurs sources de courant, en particulier plusieurs postes de soudage (1; 27; 28), sources de courant au plasma ou analogue. En mode de fonctionnement individuel indépendant, un dispositif de régulation et/ou de commande de processus (4; 31; 32) dans chaque poste de soudage (1; 27; 28) délivre des consignes à un régulateur U/I d'un composant de puissance (3; 29; 30). Ce composant de puissance (3; 29; 30) alimente en énergie un consommateur relié à des douilles de sortie (38, 39; 40, 41; 42, 43), conformément aux consignes. Selon la présente invention, plusieurs postes de soudage (1, 27, 28) de puissance identique et/ou différente et de caractéristiques techniques identiques et/ou différentes sont reliés côté secondaire par l'intermédiaire des douilles de sortie (38 bis 43), de manière à concevoir un poste de soudage (1, 27, 28) physiquement plus puissant. Pour la commande ou la régulation des postes de soudage connectés (1, 27, 28), ces postes de soudage sont reliés numériquement par une interface numérique connue (44, 45, 46) et/ou une interface de liaison numérique spéciale (47, 48, 49) pour un échange de données. Un dispositif de régulation et/ou de commande de processus (4, 32, 33) d'un poste de soudage (1, 27, 28) prend en charge la régulation de processus pour tous les autres postes de soudage connectés (1; 27; 28).
PCT/AT2001/000385 2000-12-15 2001-12-06 Procede pour relier plusieurs postes de soudage et poste de soudage correspondant Ceased WO2002047861A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE50112083T DE50112083D1 (de) 2000-12-15 2001-12-06 Verfahren zum verbinden mehrerer schweissgeräte sowie schweissgerät hierfür
EP01270402A EP1341636B1 (fr) 2000-12-15 2001-12-06 Procede pour relier plusieurs postes de soudage et poste de soudage correspondant
AT01270402T ATE354449T1 (de) 2000-12-15 2001-12-06 Verfahren zum verbinden mehrerer schweissgeräte sowie schweissgerät hierfür
US10/416,956 US7041936B2 (en) 2000-12-15 2001-12-06 Method for connecting several welding devices and corresponding welding device
AU2002220340A AU2002220340A1 (en) 2000-12-15 2001-12-06 Method for connecting several welding devices and corresponding welding device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA2097/2000 2000-12-15
AT0209700A AT412076B (de) 2000-12-15 2000-12-15 Verfahren zum verbinden mehrerer schweissgeräte sowie schweissgerät hierfür

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WO2002047861A1 true WO2002047861A1 (fr) 2002-06-20
WO2002047861A8 WO2002047861A8 (fr) 2003-03-13

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Country Status (8)

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US (1) US7041936B2 (fr)
EP (1) EP1341636B1 (fr)
CN (1) CN1299871C (fr)
AT (2) AT412076B (fr)
AU (1) AU2002220340A1 (fr)
DE (1) DE50112083D1 (fr)
ES (1) ES2282193T3 (fr)
WO (1) WO2002047861A1 (fr)

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CN103978281A (zh) * 2014-04-15 2014-08-13 刘文斌 一种具有多种负载输出模式的焊接设备
CN103978281B (zh) * 2014-04-15 2016-01-27 刘文斌 一种具有多种负载输出模式的焊接设备

Also Published As

Publication number Publication date
ES2282193T3 (es) 2007-10-16
EP1341636A1 (fr) 2003-09-10
US20040026391A1 (en) 2004-02-12
CN1592666A (zh) 2005-03-09
WO2002047861A8 (fr) 2003-03-13
ATA20972000A (de) 2004-02-15
AU2002220340A1 (en) 2002-06-24
CN1299871C (zh) 2007-02-14
AT412076B (de) 2004-09-27
ATE354449T1 (de) 2007-03-15
DE50112083D1 (de) 2007-04-05
EP1341636B1 (fr) 2007-02-21
US7041936B2 (en) 2006-05-09

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